Littelfuse CAP-35/15/440R - 35+15MFD 370/440V ROUND RUN CAPACITOR
Littelfuse

CAP-35/15/440R

UPC: 811068032670

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Specification Sheet

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Minimum Qty: 10

Multiplier: 10

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Overview

The **Littelfuse CAP-35/15/440R** is a premium-grade round run capacitor engineered for high-performance industrial motor applications, including HVAC systems, compressors, and other heavy-duty machinery. With a dual capacitance rating of **35+15µF** and a robust **370/440VAC** voltage range, this capacitor delivers precise phase correction and energy storage to optimize motor efficiency, reduce power consumption, and extend equipment lifespan. Designed to meet the rigorous demands of industrial environments, the CAP-35/15/440R ensures reliable operation under fluctuating loads, temperature extremes, and electrical stress, making it an ideal choice for professionals who prioritize durability and performance. **Key Features and Benefits:** - **Dual Capacitance Configuration (35+15µF):** Provides optimal phase correction for single-phase motors, improving power factor and reducing energy waste. This dual-value design is particularly effective in applications requiring both start and run capacitance adjustments, such as HVAC compressors and industrial pumps. - **High Voltage Rating (370/440VAC):** Engineered to handle transient voltage spikes and continuous operation at elevated voltages, ensuring stability in unstable power grids or high-demand industrial settings. The 440V rating makes it compatible with international electrical standards, broadening its applicability. - **Round Form Factor:** The compact, cylindrical design simplifies installation in tight enclosures, reducing mounting complexity while maintaining robust mechanical integrity. Its standardized dimensions ensure compatibility with a wide range of motor control panels and capacitor housings. - **Littelfuse Quality and Reliability:** Manufactured by **Littelfuse**, a global leader in circuit protection and power management solutions, the CAP-35/15/440R adheres to stringent quality control processes. Littelfuse’s reputation for innovation and durability means this capacitor is built to last, with rigorous testing for dielectric strength, thermal stability, and long-term performance. - **Wide Application Versatility:** Suitable for **HVAC systems, air compressors, pumps, fans, and industrial machinery** where single-phase motors require reliable run capacitors. Its design aligns with industry standards for motor efficiency, making it a trusted component in both OEM and aftermarket applications. **Why Choose the Littelfuse CAP-35/15/440R?** Industrial professionals select run capacitors like the CAP-35/15/440R to enhance motor performance, reduce energy costs, and prevent premature equipment failure. Unlike generic capacitors, Littelfuse’s product undergoes extensive validation to ensure it meets or exceeds industry specifications, including UL, CE, and RoHS certifications. The **35+15µF dual capacitance** is particularly advantageous in applications where motors operate under variable loads, as it dynamically adjusts to maintain optimal power factor. **Installation and Maintenance Considerations:** Proper installation is critical to maximizing the capacitor’s lifespan and performance. Professionals should: - Ensure the capacitor is mounted in a well-ventilated area to dissipate heat, as excessive temperatures can degrade performance. - Verify voltage compatibility with the motor’s requirements to avoid overloading or underutilization. - Use insulated tools and follow electrical safety protocols during installation to prevent short circuits or damage. - Regularly inspect the capacitor for signs of swelling, leakage, or corrosion, which may indicate the need for replacement. **Industry Trust and Compliance:** Littelfuse’s capacitors are trusted by engineers, technicians, and maintenance teams worldwide for their consistency and reliability. The CAP-35/15/440R is no exception, offering a cost-effective solution without compromising on quality. Whether deployed in new installations or as a replacement in existing systems, this capacitor delivers the performance and longevity expected from a premium industrial component. For professionals seeking a **high-efficiency, durable, and compliant run capacitor**, the Littelfuse CAP-35/15/440R stands out as a top-tier choice. Its combination of **dual capacitance, high voltage tolerance, and Littelfuse’s engineering excellence** ensures optimal motor operation in even the most demanding industrial environments.
  • 35+15µF dual capacitance for optimal phase correction
  • 370/440VAC voltage rating for industrial durability
  • Round design for easy installation in tight spaces
  • UL/CE/Rohs compliant for global applications
  • Littelfuse quality for long-term reliability

Specifications

Material
Poly
Mounting Type
Cylindrical Mounting
Series
CAP
Size
Round
Voltage Rating
370/440 VAC
30+5 MFD 370/440V ROUND RUN CAPACITOR

CAP-30/5/440R

30+5 MFD 370/440V ROUND RUN CAPACITOR
30+15MFD 370/440V ROUND RUN CAPACITOR

CAP-30/15/440R

30+15MFD 370/440V ROUND RUN CAPACITOR
20+10MFD 370/440V ROUND RUN CAPACITOR

CAP-20/10/440R

20+10MFD 370/440V ROUND RUN CAPACITOR
30+7.5MFD 370/440V ROUND RUN CAPACITOR

CAP-30/7.5/440R

30+7.5MFD 370/440V ROUND RUN CAPACITOR
15+3MFD 370/440V ROUND RUN CAPACITOR

CAP-15/3/440R

15+3MFD 370/440V ROUND RUN CAPACITOR
4MFD 370/440V ROUND RUN CAPACITOR

CAP-4/440R

4MFD 370/440V ROUND RUN CAPACITOR
4MFD 370/440V OVAL RUN CAPACITOR

CAP-4/440

4MFD 370/440V OVAL RUN CAPACITOR
40+4MFD 370/440V ROUND RUN CAPACITOR

CAP-40/4/440R

40+4MFD 370/440V ROUND RUN CAPACITOR
55MFD 370/440V OVAL RUN CAPACITOR

CAP-55/440

55MFD 370/440V OVAL RUN CAPACITOR
25+3MFD 370/440V OVAL RUN CAPACITOR

CAP-25/3/440

25+3MFD 370/440V OVAL RUN CAPACITOR
5MFD 370/440V ROUND RUN CAPACITOR

CAP-5/440R

5MFD 370/440V ROUND RUN CAPACITOR
50+5MFD 370/440V ROUND RUN CAPACITOR

CAP-50/5/440R

50+5MFD 370/440V ROUND RUN CAPACITOR

Frequently Asked Questions about Littelfuse

What certifications and standards do Littelfuse products comply with?

Littelfuse products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Customers can verify specific product certifications by consulting individual product datasheets on Littelfuse.com, which provide comprehensive details about standards compliance for each component.

What industries and applications are Littelfuse products used for?

Littelfuse products are critical for electrical protection and safety across multiple industrial sectors, including manufacturing, automation, power distribution, and electrical control systems. Their comprehensive product portfolio serves industries that require robust electrical protection, including motor and pump applications, solar installations, programmable logic controllers (PLCs), electrical switch panels, and critical infrastructure environments. Key product lines protect against overcurrent, voltage transients, ground faults, and temperature-related electrical risks, ensuring equipment safety and operational reliability.

What technical support does Littelfuse offer?

Littelfuse offers comprehensive technical support through multiple channels. Their Technical Hotline (800-TEC-FUSE) provides direct access to engineers who can help identify issues and recommend solutions. Additionally, Littelfuse offers extensive online Technical Resources at Littelfuse.com, including datasheets, product manuals, whitepapers, application guides, and online design tools. Their experienced product and application engineers also provide step-by-step support from design to installation.

What are the main product lines offered by Littelfuse?

Littelfuse offers comprehensive industrial protection and control product lines, including fuses, fuse holders, protection relays, temperature sensors, and electrical safety components. Their key product categories span surge protective devices, custom OEM products, electrical switch panels, medium voltage fuses, ground-fault protection relays, motor and pump protection devices, and temperature sensors. These products are designed to minimize electrical safety hazards, limit equipment damage, improve productivity, and safeguard personnel from electrical faults.

What are the key features of Littelfuse products?

Littelfuse products feature exceptional circuit protection technologies with key characteristics including UL/IEC safety standard compliance, low internal resistance, and advanced protective capabilities across multiple product lines. Their components provide critical protection for industrial systems, offering features like overcurrent protection, voltage transient suppression, and resettable protection devices with ultra-low resistance and compact designs. Key product lines include fuses, metal oxide varistors (MOVs), TVS diodes, PolySwitch devices, and specialized electronic protection components that enhance system reliability and safety.

What environmental ratings do Littelfuse products have?

Littelfuse products feature comprehensive environmental ratings, including NEMA Type 1, 2, 3, 3R, 4/4X, 12, and 13 certifications, as well as IP65 protection. These ratings ensure superior protection in diverse industrial environments, with an operating temperature range of -40°F to +131°F (-40°C to +55°C). Many products also include UV-stabilized materials and neoprene gaskets for enhanced durability in outdoor and challenging conditions.

What accessories are available for Littelfuse products?

Littelfuse offers several key accessories across their product lines, including fuse holders, voltage monitoring modules, and terminal connectors. Specific accessories include the LPSM003ZXID (indicating) and LPSM003Z (non-indicating) POWR-SAFE Dead Front fuse holders for Class CC and Midget-Style fuses, the VRM6048 voltage monitor accessory module, and female quick connect terminals (P1015 series) in various wire gauge sizes. These accessories are designed to enhance protection, monitoring, and connectivity for Littelfuse electrical components.

What is Littelfuse's warranty policy?

Littelfuse provides comprehensive warranty details on their official website at www.littelfuse.com/warranty. Customers should visit this page to review the specific warranty terms and conditions for their specific product lines. For direct warranty support or questions, customers can contact Littelfuse Technical Support at 1-800-TEC-FUSE or email [email protected].

What communication protocols do Littelfuse products support?

Littelfuse supports a comprehensive range of industrial communication protocols, including PROFIBUS, PROFINET, EtherNet/IP, DeviceNet, Modbus RTU, and CANopen. Our products provide flexible connectivity solutions across multiple industrial automation platforms, enabling seamless integration with various control systems and network architectures.

How are Littelfuse products typically installed?

Littelfuse products are typically installed using specialized mounting hardware like fuse holders, blocks, and panels designed for specific industrial applications. The POWR-SAFE Dead Front holders, for example, provide optimum protection for Class CC and Midget-Style fuses, supporting installations up to 600 VAC/DC. Installation often involves using precision terminals with strain relief, such as 0.25 in. female quick connect terminals, to ensure secure and safe electrical connections in industrial control systems.